Actually, they could still make that claim, and it goes along with my personal theory about the higher drop rate. The measurement provided was simply the "drop

Actually, they could still make that claim, and it goes along with my personal theory about the higher drop rate. The measurement provided was simply the "drop rate" per 100 calls. Implicit in this is that it's the drop rate for successfully connected calls, since a call that never connects can't be dropped. I believe that the iPhone 4 is more sensitive and has better reception than the 3GS. There are rooms in my house where I get 0 bars and I can't make a phone call on the 3GS but I can successfully make calls on the iPhone 4. So let's say I try to make 100 calls, but the reception sucks in some rooms so on the 3GS only 80 calls successfully connect and of those 4 get dropped. That's a drop percentage of 5% or 5 our of 100. But let's say on the iPhone 4 I'm able to successfully connect on all 100 calls, but since the signal is so low in some of the rooms, I drop 10 of the calls. So 10% or 10 out of 100. So I've now got a drop rate that's double the 3GS, even though I'm able to make 10 more completely successful calls per 100.